1 files changed, 257 insertions, 0 deletions
diff --git a/nx-X11/extras/ttf2pt1/pt1.h b/nx-X11/extras/ttf2pt1/pt1.h
new file mode 100644
index 000000000..4f65f8847
--- /dev/null
+++ b/nx-X11/extras/ttf2pt1/pt1.h
@@ -0,0 +1,257 @@
+/*
+ * see COPYRIGHT
+ */
+
+
+/* glyph entry, one drawing command */
+typedef struct gentry {
+	/* this list links all GENTRYs of a GLYPH sequentially */
+	struct gentry  *next;	/* double linked list */
+	struct gentry  *prev;
+
+	/* this list links all GENTRYs of one contour - 
+	 * of types GE_LINE and GE_CURVE only
+	 * bkwd is also reused: in the very first entry (normally
+	 * of type GE_MOVE) it points to g->entries
+	 */
+	struct gentry  *cntr[2]; /* double-linked circular list */
+/* convenience handles */
+#define bkwd cntr[0]
+#define frwd cntr[1]
+
+	/* various extended structures used at some stage of transformation */
+	void *ext; 
+
+	union {
+		struct {
+			int  val[2][3];	/* integer values */
+		} i;
+		struct {
+			double  val[2][3];	/* floating values */
+		} f;
+	} points; /* absolute values, NOT deltas */
+/* convenience handles */
+#define ipoints	points.i.val
+#define fpoints	points.f.val
+#define ixn ipoints[0]
+#define iyn ipoints[1]
+#define fxn fpoints[0]
+#define fyn fpoints[1]
+#define ix1	ixn[0]
+#define ix2 ixn[1]
+#define ix3 ixn[2]
+#define iy1	iyn[0]
+#define iy2 iyn[1]
+#define iy3 iyn[2]
+#define fx1	fxn[0]
+#define fx2 fxn[1]
+#define fx3 fxn[2]
+#define fy1	fyn[0]
+#define fy2 fyn[1]
+#define fy3 fyn[2]
+
+	char            flags; 
+#define GEF_FLOAT	0x02 /* entry contains floating point data */
+#define GEF_LINE	0x04 /* entry looks like a line even if it's a curve */
+
+	unsigned char	dir; /* used to temporarily store the values for
+				* the directions of the ends of curves */
+/* front end */
+#define CVDIR_FUP	0x02	/* goes over the line connecting the ends */
+#define CVDIR_FEQUAL	0x01	/* coincides with the line connecting the
+				 * ends */
+#define CVDIR_FDOWN	0x00	/* goes under the line connecting the ends */
+#define CVDIR_FRONT	0x0F	/* mask of all front directions */
+/* rear end */
+#define CVDIR_RSAME	0x30	/* is the same as for the front end */
+#define CVDIR_RUP	0x20	/* goes over the line connecting the ends */
+#define CVDIR_REQUAL	0x10	/* coincides with the line connecting the
+				 * ends */
+#define CVDIR_RDOWN	0x00	/* goes under the line connecting the ends */
+#define CVDIR_REAR	0xF0	/* mask of all rear directions */
+
+	signed char     stemid; /* connection to the substituted stem group */
+	char            type;
+#define GE_HSBW	'B'
+#define GE_MOVE 'M'
+#define GE_LINE 'L'
+#define GE_CURVE 'C'
+#define GE_PATH 'P'
+
+	/* indexes of the points to be used for calculation of the tangents */
+	signed char     ftg; /* front tangent */
+	signed char     rtg; /* rear tangent, -1 means "idx 2 of the previous entry" */
+}               GENTRY;
+
+/* stem structure, describes one [hv]stem  */
+/* acually, it describes one border of a stem */
+/* the whole stem is a pair of these structures */
+
+typedef struct stem {
+	short           value;	/* value of X or Y coordinate */
+	short           origin;	/* point of origin for curve stems */
+	GENTRY         *ge; /* entry that has (value, origin) as its first dot */
+		/* also for all the stems the couple (value, origin)
+		 * is used to determine whether a stem is relevant for a
+		 * line, it's considered revelant if this tuple is
+		 * equal to any of the ends of the line.
+		 * ge is also used to resolve ambiguity if there is more than
+		 * one line going through certain pointi, it is used to 
+		 * distinguish these lines.
+		 */
+	 
+	short           from, to;	/* values of other coordinate between
+					 * which this stem is valid */
+
+	short           flags;
+	/* ordering of ST_END, ST_FLAT, ST_ZONE is IMPORTANT for sorting */
+#define ST_END		0x01	/* end of line, lowest priority */
+#define ST_FLAT		0x02	/* stem is defined by a flat line, not a
+				 * curve */
+#define ST_ZONE		0x04	/* pseudo-stem, the limit of a blue zone */
+#define ST_UP		0x08	/* the black area is to up or right from
+				 * value */
+#define ST_3		0x20	/* first stem of [hv]stem3 */
+#define ST_BLUE		0x40	/* stem is in blue zone */
+#define ST_TOPZONE	0x80	/* 1 - top zone, 0 - bottom zone */
+#define ST_VERT     0x100	/* vertical stem (used in substitutions) */
+}               STEM;
+
+#define MAX_STEMS	2000	/* we can't have more stems than path
+				 * elements (or hope so) */
+#define NSTEMGRP	50	/* maximal number of the substituted stem groups */
+
+/* structure for economical representation of the
+ * substituted stems
+ */
+
+typedef struct stembounds {
+	short low; /* low bound */
+	short high; /* high bound */
+	char isvert; /* 1 - vertical, 0 - horizontal */
+	char already; /* temp. flag: is aleready included */
+} STEMBOUNDS;
+
+struct kern {
+	unsigned id; /* ID of the second glyph */
+	int val; /* kerning value */
+};
+
+typedef struct contour {
+	short           ymin, xofmin;
+	short           inside;	/* inside which contour */
+	char            direction;
+#define DIR_OUTER 1
+#define DIR_INNER 0
+}               CONTOUR;
+
+typedef struct glyph {
+	int             char_no;/* Encoding of glyph */
+	int             orig_code;/* code of glyph in the font's original encoding */
+	char           *name;	/* Postscript name of glyph */
+	int             xMin, yMin, xMax, yMax;	/* values from TTF dictionary */
+	int             lsb; /* left sidebearing */
+	int             ttf_pathlen; /* total length of TTF paths */
+	short           width;
+	short           flags;
+#define GF_USED	0x0001		/* whether is this glyph used in T1 font */
+#define GF_FLOAT 0x0002		/* thys glyph contains floating point entries */
+
+	GENTRY         *entries;/* doube linked list of entries */
+	GENTRY         *lastentry;	/* the last inserted entry */
+	GENTRY         *path;	/* beggining of the last path */
+	int             oldwidth; /* actually also scaled */
+	int             scaledwidth;
+#define	MAXLEGALWIDTH	10000 
+
+	struct kern    *kern; /* kerning data */
+	int             kerncount; /* number of kerning pairs */
+	int             kernalloc; /* for how many pairs we have space */
+
+	STEM           *hstems; /* global horiz. and vert. stems */
+	STEM           *vstems;
+	int             nhs, nvs;	/* numbers of stems */
+
+	STEMBOUNDS     *sbstems; /* substituted stems for all the groups */
+	short          *nsbs; /* indexes of the group ends in the common array */
+	int             nsg; /* actual number of the stem groups */
+	int             firstsubr; /* first substistuted stems subroutine number */
+
+	CONTOUR        *contours;	/* it is not used now */
+	int             ncontours;
+
+	int             rymin, rymax;	/* real values */
+	/* do we have flat surfaces on top/bottom */
+	char            flatymin, flatymax;
+
+}               GLYPH;
+
+/* description of a dot for calculation of its distance to a curve */
+
+struct dot_dist {
+	double p[2 /*X,Y*/]; /* coordinates of a dot */
+	double dist2; /* squared distance from the dot to the curve */
+	short seg; /* the closest segment of the curve */
+};
+
+extern int      stdhw, stdvw;	/* dominant stems widths */
+extern int      stemsnaph[12], stemsnapv[12];	/* most typical stem width */
+
+extern int      bluevalues[14];
+extern int      nblues;
+extern int      otherblues[10];
+extern int      notherb;
+extern int      bbox[4];	/* the FontBBox array */
+extern double   italic_angle;
+
+extern GLYPH   *glyph_list;
+extern int    encoding[];	/* inverse of glyph[].char_no */
+
+/* prototypes of functions */
+void rmoveto( int dx, int dy);
+void rlineto( int dx, int dy);
+void rrcurveto( int dx1, int dy1, int dx2, int dy2, int dx3, int dy3);
+void assertpath( GENTRY * from, char *file, int line, char *name);
+
+void fg_rmoveto( GLYPH * g, double x, double y);
+void ig_rmoveto( GLYPH * g, int x, int y);
+void fg_rlineto( GLYPH * g, double x, double y);
+void ig_rlineto( GLYPH * g, int x, int y);
+void fg_rrcurveto( GLYPH * g, double x1, double y1,
+	double x2, double y2, double x3, double y3);
+void ig_rrcurveto( GLYPH * g, int x1, int y1,
+	int x2, int y2, int x3, int y3);
+void g_closepath( GLYPH * g);
+
+void pathtoint( GLYPH *g);
+void ffixquadrants( GLYPH *g);
+void flattencurves( GLYPH * g);
+int checkcv( GENTRY * ge, int dx, int dy);
+void iclosepaths( GLYPH * g);
+void fclosepaths( GLYPH * g);
+void smoothjoints( GLYPH * g);
+void buildstems( GLYPH * g);
+void fstraighten( GLYPH * g);
+void istraighten( GLYPH * g, int zigonly);
+void isplitzigzags( GLYPH * g);
+void fsplitzigzags( GLYPH * g);
+void fforceconcise( GLYPH * g);
+void iforceconcise( GLYPH * g);
+void reversepathsfromto( GENTRY * from, GENTRY * to);
+void reversepaths( GLYPH * g);
+void dumppaths( GLYPH * g, GENTRY *start, GENTRY *end);
+void print_glyph( int glyphno);
+int print_glyph_subs( int glyphno, int startid);
+void print_glyph_metrics( int code, int glyphno);
+void findblues(void);
+void stemstatistics(void);
+void docorrectwidth(void);
+void addkernpair( unsigned id1, unsigned id2, int unscval);
+void print_kerning( FILE *afm_file);
+
+int fcrossrayscv( double curve[4][2], double *max1, double *max2);
+int fcrossraysge( GENTRY *ge1, GENTRY *ge2, double *max1, double *max2,
+	double crossdot[2][2]);
+double fdotsegdist2( double seg[2][2], double dot[2]);
+double fdotcurvdist2( double curve[4][2], struct dot_dist *dots, int ndots, double *maxp);
+void fapproxcurve( double cv[4][2], struct dot_dist *dots, int ndots);